yui/south no south is an original creator known for work in the light novel and manga industries, primarily recognized as the author of the isekai fantasy series The Third Prince Wants a Slow Life. The creator’s name is often presented in credits as yui/south no south or yui/サウスのサウス.

This creator began writing The Third Prince Wants a Slow Life as a web novel on the user-generated content site Kakuyomu in December 2020. The series was subsequently published in print by Tsugikuru Books under their Tsugikuru Books imprint, with the first volume released in April 2022. The light novel features illustrations by Asuka Shikitani.

A manga adaptation of the series followed, with yui/south no south receiving credit as the original creator. The manga, illustrated by Shinnosuke Fujishima, began serialization on Takeshobo’s Web Comic Gamma Plus platform in December 2022. The print edition is published by Takeshobo under its Bamboo Comics label, with multiple volumes released from 2023 onward.

The creator’s narrative work centers on a protagonist who, after enduring two difficult lives as a corporate wage slave and then an overworked hero, is reborn as a third prince. This new life is intended to be a peaceful existence in a frontier territory, using the knowledge and skills from his past lives. The series combines elements of reincarnation, fantasy, and slow-life genres. No verified information regarding an anime adaptation or other original works by this creator is available in the provided sources.